Antique Tiara Convertible Brooch Old Mine Cut Diamonds

Tiara convertible Diamond Antique Brooch on Silver and Gold. Aigrette feather is optional. Old mine cut Diamonds: approximately 15.00 carats. Tiar...

Antique Tiara convertible En Tremblant Flower Diamond Brooch on Silver and Gold. French marks. Late 19th Century. Tiara frame in titanium flexible a...

Tiara convertible Brooch Paradise Bird Rose cut Diamond, ruby and emerald. Total approximately 10.15 carats on silver and gold. Early 20th century...

14K gold and silver brooch set by rose-cut diamonds. Dimensions (without chain): 4.50 centimeters x 2.00 centimeters. Gross weight: 4.64 grams.

Impressive Stomacher Brooch set by Rose cut Diamond on silver and gold. Five Emerald Beads pending. Arabic inscription for "Mashallah" which means "T...

Metal painted Antique Brooch. Diameter: 3.80 centimeters. Total weight: 15.51 grams.

Georgian Old Mine Diamond Brooch Circa 1830 4.25 ct. of Diamonds, including an Old Mine Cushion cut Diamond in the center weighing approximately hal...

This fabulous antique brooch, masterfully designed with elegant Art Nouveau accents, features a wonderful black opal cabouchon measuring 20 x 17mm, rub-over set in the centre in an 1...

A Victorian old cut diamond tiara. This exquisite, handmade Victorian yellow gold and silver diamond tiara is comprised of a central foliate design, vertically set with round old cut diamonds and a cascade of old cut diamond set openwork floral motif scrolls. The tiara can be converted into a necklet with a detachable necklace...

A stunning antique diamond tiara convertible to a necklace, c.1880s, the tiara designed as a relatively short compact fringe which almost gives the impression of a bandeau style tiara, it has a gently tapered form and is composed of twenty-three knife edge bars each applied with a curved V-shape diamond-set motif and surmounted by an old cut diamond in claw setting, these are interspersed with shorter bars topped with graduated old cut diamonds and all are set above a base row of diamonds with alternate stones embellished further by a bezel set rose cut diamond above and below, all set in silver and gold and attached to a tiara frame...

This stunning platinum pin centers a sparkling old mine cut diamond that weighs 1.42ct. and is graded H color with SI3 clarity. The pin is set with dazzling old mine cut diamonds wei...

This is an extraordinary Diamond Platinum Tiffany & Co. Edwardian - Art Deco Brooch Pin with approximately 2.5 Carats of magnificent Old Mine Cut Tiffany Diamonds set in Platinum in an open work scroll and leaf motif design of the highest quality. The antique Tiffany Diamonds are extraordinary. They are brilliantly white and clean. There are 30 Old Mine Cut Diamonds set throughout the brooch. In the center is a very rare pyramidal square fancy cut diamond of exceptional quality. The diamond is brilliantly white and very clean and the cut is absolutely magnificent. The diamonds are set in Platinum in a gorgeous open work design with knife edge designs leading to the two circular terminals. The terminals have elegant leaf and scroll form motifs set with diamonds in an arched design with milgrain beaded borders. The Tiffany Brooch is one of the most beautiful Edwardian jewels we have seen. The stunning design is timeless. The use of Platinum allowed the Tiffany jewelers...